I was looking at my CLI the other day, and found a lot of those types of messages:
NOTICE[2242]: chan_sip.c:14383 handle_request_invite: Call from '' to extension '0004525551690000' rejected because extension not found. Looking at the IP, it originated from Asia and was clearly an attempt to screw with my Asterisk server. My quick fix was simply to block the IP adress at the firewall level. So that was the end of that. What I don`t get is how the person got that far. How could he attempt to dial extensions (even though he probably was in the default context which has nothing in it) when all my SIP peers are either password protected or linked to a fixed IP. And, more to the point, "Call from `` " means a call from what exactly? It's not one of my phones, it's not one of my peersÂ…..Shouldn't the lack of a peer be enough to block the would-be hacker from tyring extensions? Any help is appreciate, I clearly don't understand SIP peers. Mike
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